<template>
  <basic-container>
    <avue-crud :option="option"
               :table-loading="loading"
               :data="data"
               :page="page"
               :permission="permissionList"
               :before-open="beforeOpen"
               v-model="form"
               ref="crud"
               @row-update="rowUpdate"
               @row-save="rowSave"
               @row-del="rowDel"
               @search-change="searchChange"
               @search-reset="searchReset"
               @selection-change="selectionChange"
               @current-change="currentChange"
               @size-change="sizeChange"
               @on-load="onLoad">
      <template slot="menuLeft">
<!--        <el-button type="danger"-->
<!--                   size="small"-->
<!--                   icon="el-icon-delete"-->
<!--                   plain-->
<!--                   v-if="permission.food_delete"-->
<!--                   @click="handleDelete">删 除-->
<!--        </el-button>-->
      </template>
      <template slot-scope="{row}" slot="status">
        <el-tag v-if="row.status === 1" type="success">上 架</el-tag>
        <el-tooltip v-if="row.status === 2" class="item" effect="dark" :content="`下架时间: ${row.downTime}`" placement="top">
          <el-tag type="danger">下 架</el-tag>
        </el-tooltip>
      </template>
      <template slot-scope="{row}" slot="kcal">
        <el-tag type="primary">{{ row.kcal }} kcal</el-tag>
      </template>
      <template slot-scope="{type,disabled}" slot="kcalForm">
        <el-tag>{{ foodKcal }} kcal</el-tag>
      </template>
      <template slot-scope="{type,disabled}" slot="ingredientsForm">
        <div>
          <el-table
            :data="ingredientsTableData"
            border
            style="width: 100%">
            <el-table-column
              label="食材">
              <template slot-scope="scope">
                <el-autocomplete v-model="scope.row.ingredientsName" class="el-input" :fetch-suggestions="queryIngredientsAsync"
                                 placeholder="搜索食材" @select="(val) => handleIngredientsSelect(val, scope.$index)" clearable @change="(val) => handleIngredientsChange(val, scope.$index)"></el-autocomplete>
              </template>
            </el-table-column>
            <el-table-column
              label="克重">
              <template slot-scope="scope">
                <el-input :disabled="scope.row.unit || scope.row.unit !== ''" v-model="scope.row.weight" type="number"></el-input>
              </template>
            </el-table-column>
            <el-table-column
              label="数量">
              <template slot-scope="scope">
                <el-input :placeholder="scope.row.unit !== '' ? unitContent(scope.row.unit) : ''"
                          :disabled="!scope.row.unit || scope.row.unit === ''"
                          v-model="scope.row.unitCount" type="number"
                          @change="handleUnitCountChange(scope.$index, scope.row.unitCount, scope.row.unit)"
                ></el-input>
              </template>
            </el-table-column>
            <el-table-column
              label="kcal">
              <template slot-scope="scope">
                <el-tag>{{ ingredientsKcal(scope.row.weight, scope.row.kcal) }} kcal</el-tag>
              </template>
            </el-table-column>
            <el-table-column align="right">
              <template slot="header" slot-scope="scope">
                <el-button
                  size="mini"
                  type="primary"
                  @click="handleAddItem">添加</el-button>
              </template>
              <template slot-scope="scope">
                <el-button
                  size="mini"
                  type="danger"
                  @click="handleRemoveItem(scope.$index)">删除</el-button>
              </template>
            </el-table-column>
          </el-table>
        </div>
      </template>
      <template slot-scope="{row}" slot="menu">
        <el-button
          v-if="row.canDelete"
          icon="el-icon-delete"
          type="text"
          size="small"
          @click.stop="rowDel(row)"
        >删 除
        </el-button>
      </template>
    </avue-crud>
  </basic-container>
</template>

<script>
  import {getList, getDetail, add, update, remove} from "@/api/food/food";
  import {getSelect} from "@/api/food/ingredients";
  import {mapGetters} from "vuex";

  export default {
    data() {
      return {
        form: {},
        query: {},
        loading: true,
        page: {
          pageSize: 100,
          currentPage: 1,
          total: 0
        },
        selectionList: [],
        option: {
          height: 'auto',
          calcHeight: 210,
          searchShow: true,
          searchMenuSpan: 6,
          tip: false,
          border: true,
          index: true,
          viewBtn: true,
          selection: true,
          column: [
            {
              label: "名称",
              prop: "name",
              rules: [{
                required: true,
                message: "请输入名称",
                trigger: "blur"
              }],
              search: true,
              row: true,
              span: 24
            },
            {
              label: "分类",
              prop: "foodCategoryId",
              rules: [{
                required: true,
                message: "请选择分类",
                trigger: "blur"
              }],
              row: true,
              type: "select",
              dicUrl: '/api/celery-food/food-category/select',
              search: true,
              props: {
                label: "name",
                value: "id"
              },
              span: 24
            },
            {
              label: "需要食材",
              prop: "ingredients",
              formslot: true,
              hide: true,
              row: true,
              span: 24
            },
            {
              label: "热量",
              prop: "kcal",
              formslot: true,
              slot: true,
              disabled: true,
              row: true,
              span: 24
            },
            {
              label: "排序",
              prop: "sort",
              rules: [{
                required: true,
                message: "请输入名称",
                trigger: "blur"
              }],
              value: 99,
              type: "number",
              row: true,
              span: 24
            },
            {
              label: "是否上架",
              prop: "status",
              type: "switch",
              slot: true,
              value: 1,
              dicData: [
                {
                  label: '下架',
                  value: 2
                },
                {
                  label: '上架',
                  value: 1
                }
              ],
              props: {
                label: "label",
                value: "value"
              },
              rules: [{
                required: true,
                message: "请选择是否上架",
                trigger: "blur"
              }],
            },
            {
              label: "占用格数",
              prop: "gridCount",
              type: "radio",
              value: 1,
              dicData: [
                {
                  label: '0格',
                  value: 0
                },
                {
                  label: '1格',
                  value: 1
                },
                {
                  label: '2格',
                  value: 2
                },
                {
                  label: '3格',
                  value: 3
                },
                {
                  label: '4格',
                  value: 4
                }
              ],
              props: {
                label: "label",
                value: "value"
              },
              rules: [{
                required: true,
                message: "请输入占用格数",
                trigger: "blur"
              }],
              row: true,
              span: 24
            },
            {
              label: "封面",
              prop: "pictureUrl",
              dataType: 'string',
              type: 'upload',
              listType: 'picture-card',
              propsHttp: {
                res: 'data',
                url: 'link',
                name: 'originalName'
              },
              limit: 9,
              tip: '只能上传jpg/png文件，且不超过500kb, 限制9张图片',
              action: '/api/blade-resource/oss/endpoint/put-file',
              row: true,
              span: 24
            },
            {
              label: "描述",
              prop: "description",
              type: "ueditor",
              component: 'avue-ueditor',
              action: "/api/blade-resource/oss/endpoint/put-file",
              propsHttp: {
                res: "data",
                url: "link"
              },
              options: {
                customConfig: {
                  uploadImgMaxSize: 30 * 1024 *1024
                },
              },
              hide: true,
              row: true,
              span: 24
            },
          ]
        },
        data: [],
        ingredientsTableData: [],
        ingredientsOptions: [],
        ingredientsName: '',
      };
    },
    computed: {
      ...mapGetters(["permission"]),
      permissionList() {
        return {
          addBtn: this.vaildData(this.permission.food_add, false),
          viewBtn: false,
          delBtn: false,
          editBtn: this.vaildData(this.permission.food_edit, false)
        };
      },
      ids() {
        let ids = [];
        this.selectionList.forEach(ele => {
          ids.push(ele.id);
        });
        return ids.join(",");
      },
      unitContent() {
        return (unit) => {
          try {
            return `请输入${JSON.parse(unit).name}数（1 ${JSON.parse(unit).name} ${JSON.parse(unit).grams} 克）`
          } catch (e) {
            return ''
          }
        }
      },
      ingredientsKcal() {
        return (weight, kcal) => {
          if (kcal === 0 || weight === 0) {
            return 0
          }
          return weight / 100 * kcal
        }
      },
      foodKcal() {
        let kcal = 0
        this.ingredientsTableData.forEach(item => {
          const itemKcal = this.ingredientsKcal(item.weight, item.kcal)
          kcal += itemKcal
        })
        return kcal
      }
    },
    methods: {
      handleUnitCountChange(index, unitCount, unit) {
        const weight = JSON.parse(unit).grams * unitCount
        this.$set(this.ingredientsTableData[index], 'weight', weight)
      },
      handleIngredientsSelect(val, index) {
        this.$set(this.ingredientsTableData[index], 'id', val.id)
        this.$set(this.ingredientsTableData[index], 'unit', val.unit)
      },
      handleIngredientsChange(val, index) {
        if (val === '') {
          this.$set(this.ingredientsTableData[index], 'id', val.id)
          this.$set(this.ingredientsTableData[index], 'unit', val.unit)
        }
      },
      queryIngredientsAsync(queryString, cb) {
        const restaurants = this.ingredientsOptions;
        const results = queryString ? restaurants.filter(this.createIngredientsStateFilter(queryString)) : restaurants;

        clearTimeout(this.timeout);
        this.timeout = setTimeout(() => {
          cb(results);
        }, 1000 * Math.random());
      },
      createIngredientsStateFilter(queryString) {
        return (state) => {
          return (state.value.toLowerCase().includes(queryString.toLowerCase()));
        };
      },
      handleAddItem() {
        this.ingredientsTableData.push({
          id: '',
          weight: 0,
          unit: '',
          kcal: 0,
          unitCount: '',
        })
      },
      handleRemoveItem(index) {
        this.ingredientsTableData.splice(index, 1)
      },
      rowSave(row, done, loading) {
        if (this.ingredientsTableData.length === 0) {
          this.$message.warning('请至少添加一种食材!')
          loading()
          return
        } else {
          try {
            this.ingredientsTableData.forEach(item => {
              if (item.id === '' || item.weight === '') {
                throw '请正确填写食材信息!'
              }
            })
          } catch (e) {
            this.$message.error(e)
            loading()
            return
          }
        }

        const foodIngredientsIdList = this.ingredientsTableData.map(item => item.id)
        if (foodIngredientsIdList.length !== this.ingredientsTableData.length || foodIngredientsIdList.includes('') || foodIngredientsIdList.includes(undefined)) {
          this.$message.warning('请正确填写食材信息！')
          loading()
          return;
        }

        row.foodIngredientsList = this.ingredientsTableData.map(item => {
            return {
              ingredientsId: item.id,
              grams: item.weight
            }
        })
        add(row).then(() => {
          done();
          this.onLoad(this.page);
          this.$message({
            type: "success",
            message: "操作成功!"
          });
        }, error => {
          window.console.log(error);
          loading();
        });
      },
      rowUpdate(row, index, done, loading) {
        if (this.ingredientsTableData.length === 0) {
          this.$message.warning('请至少添加一种食材!')
          loading()
          return
        } else {
          try {
            this.ingredientsTableData.forEach(item => {
              if (item.id === '' || item.weight === '') {
                throw '请正确填写食材信息!'
              }
            })
          } catch (e) {
            this.$message.error(e)
            loading()
            return
          }
        }

        const foodIngredientsIdList = this.ingredientsTableData.map(item => item.id)
        if (foodIngredientsIdList.length !== this.ingredientsTableData.length || foodIngredientsIdList.includes('') || foodIngredientsIdList.includes(undefined)) {
          this.$message.warning('请正确填写食材信息！')
          loading()
          return;
        }

        row.foodIngredientsList = this.ingredientsTableData.map(item => {
          return {
            ingredientsId: item.id,
            grams: item.weight
          }
        })
        update(row).then(() => {
          done();
          this.onLoad(this.page);
          this.$message({
            type: "success",
            message: "操作成功!"
          });
        }, error => {
          window.console.log(error);
          loading();
        });
      },
      rowDel(row) {
        this.$confirm("确定将选择数据删除?", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        })
          .then(() => {
            return remove(row.id);
          })
          .then(() => {
            this.onLoad(this.page);
            this.$message({
              type: "success",
              message: "操作成功!"
            });
          });
      },
      handleDelete() {
        if (this.selectionList.length === 0) {
          this.$message.warning("请选择至少一条数据");
          return;
        }
        this.$confirm("确定将选择数据删除?", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        })
          .then(() => {
            return remove(this.ids);
          })
          .then(() => {
            this.onLoad(this.page);
            this.$message({
              type: "success",
              message: "操作成功!"
            });
            this.$refs.crud.toggleSelection();
          });
      },
      handleGetIngredientsOptions() {
        getSelect().then(res => {
          this.ingredientsOptions = res.data.data.map(item => {
            return {
              value: item.name,
              id: item.id,
              unit: item.unit,
              kcal: item.kcal,
            }
          })
        })
      },
      beforeOpen(done, type) {
        this.ingredientsTableData = []
        // this.handleGetIngredientsOptions()
        if (["edit", "view"].includes(type)) {
          getDetail(this.form.id).then(res => {
            const data = res.data.data
            this.form = data
            this.ingredientsTableData = data.foodIngredientsList.map(item => {
              let unit = ''
              let weight = item.grams
              this.ingredientsOptions.forEach(ingredients => {
                if (ingredients.id === item.ingredientsId) {
                  unit = ingredients.unit
                }
              })
              return {
                id: item.ingredientsId,
                ingredientsName: item.ingredientsName,
                weight: weight,
                unit: unit,
                kcal: item.ingredientsKcal,
                unitCount: unit !== '' ? (weight / JSON.parse(unit).grams) : ''
              }
            })
          });
        }
        done();
      },
      searchReset() {
        this.query = {};
        this.onLoad(this.page);
      },
      searchChange(params, done) {
        this.query = params;
        this.page.currentPage = 1;
        this.onLoad(this.page, params);
        done();
      },
      selectionChange(list) {
        this.selectionList = list;
      },
      selectionClear() {
        this.selectionList = [];
        this.$refs.crud.toggleSelection();
      },
      currentChange(currentPage){
        this.page.currentPage = currentPage;
      },
      sizeChange(pageSize){
        this.page.pageSize = pageSize;
      },
      onLoad(page, params = {}) {
        this.loading = true;
        getList(page.currentPage, page.pageSize, Object.assign(params, this.query)).then(res => {
          const data = res.data.data;
          this.page.total = data.total;
          this.data = data.records;
          this.loading = false;
          this.selectionClear();
        });
        this.ingredientsTableData = []
        this.ingredientsOptions = []
        this.handleGetIngredientsOptions()
      }
    }
  };
</script>

<style>
</style>
